Systems and methods for tissue stiffness measurements

Abstract

Automated tissue stiffness measurement devices and methods can identify cancerous lesions with high sensitivity and specificity. Systems and methods are presented to measure tissue stiffness using applied force, illumination and imaging techniques. The systems and methods can use structured illumination to characterize a tissue surface.

Description

RELATED APPLICATION[0001]This application claims priority to U.S. Provisional Patent Application No. 62 / 212,381, filed Aug. 31, 2015, the contents of which is incorporated herein by reference in its entirety.BACKGROUND OF THE INVENTION[0002]Skin cancer is the most common form of cancer, accounting for one-third of all cancer diagnoses in the United States. This translates to 1 out of 5 Americans developing skin cancer at some point in their lifetime. There are three different primary types of skin cancer based on the type of skin cells that are affected: basal cell carcinoma, squamous cell carcinoma, and melanoma. The non-melanoma cancer types are more frequent, but highly curable. Melanoma, while less common, is much more deadly, causing over 75% of skin cancer deaths. There were an estimated 81,000 new cases and 12,000 deaths resulting from melanoma in 2012. More than 3 million non-melanoma skin cancers and 140,000 melanoma skin cancers afflict people every year in the United Stat...

AI Technical Summary

Benefits of technology

This patent describes a device and method for measuring the hardness of skin tissue to help with the diagnosis and treatment of skin cancer. The device can be connected to a computer database to allow doctors to monitor their patients remotely, and it can also operate without needing a mobile phone. The device accurately measures the size of the skin lesion, which helps with determining the best way to remove the tumor. This saves time and reduces the need for more invasive procedures. The device is cost-effective and easy to use, which makes it a great tool for dermatologists.

Problems solved by technology

Melanoma, while less common, is much more deadly, causing over 75% of skin cancer deaths.

Cancer can develop when DNA within the skin cells becomes damaged and the body is unable to repair the damage.

This method can result in repeat procedures to remove a single lesion, which is inefficient, risks infection, and is cosmetically unappealing.

Earlier detection also decreases cost.

Late stage melanoma is approximately 32 times more expensive than early stage tumors.

A patient's first point of contact, their primary physician, has significantly lower accuracy when diagnosing skin lesions than dermatologists.

With increasing wait times for dermatologists, there is a huge gap in the market for cost-effective detection tool for non-specialists.

Even though early diagnosis almost guarantees survival, the U.S. Preventive Services Task Force concluded there wasn't enough evidence to support routine screening by primary care physicians.

This is partially due to the fact there is a considerable debate on who should be screened, who should do the screening, and how often the screening should occur.

It is impossible to predict which lesions will become cancerous and the excision of all is not practical, requires unnecessary surgery, and does not completely prevent the chance of skin cancer.

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